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AI API cost calculator

Enter your monthly usage and see what every model would cost, from today's published prices.

8 left today

Start from a typical workload

Support chatbot5M in, 1M out Document Q&A (RAG)60M in, 2M out, 50% cached Coding agent200M in, 15M out, 80% cached Nightly batch summaries30M in, 3M out, batch
Not sure of your volume? Estimate it from a sample

An estimate: about 4 characters per token for English, fewer for French, and about 2.5 for Arabic. Each provider tokenises differently, so expect up to 20% either way. Your text stays in your browser unless you press the button.

Your selection

GPT-6.1 Terra
$20.00 Per month
DeepSeek V4 Pro
$21.12 Per month
The 15 cheapest for this workload87 models priced, cheapest first. Taxes and free tiers are not included.
  1. GPT-5 nanoOpenAI$1.30
  2. DeepSeek V4 Flash 0731DeepSeek$1.67
  3. Gemini 2.5 Flash-LiteGoogle$1.80
  4. GPT-4.1 nanoOpenAI$1.80
  5. Claude Haiku 5.5Anthropic$2.00
  6. GPT-6 LunaOpenAI$2.00
  7. GPT-6 Luna ProOpenAI$2.00
  8. GPT-4o MiniOpenAI$2.70
  9. DeepSeek V4 Flash Vision ExpDeepSeek$3.45
  10. GPT-5.6 LunaOpenAI$4.40
  11. GPT-5.4 nanoOpenAI$4.50
  12. DeepSeek V4.1 FlashDeepSeek$5.40
  13. Gemini 3.1 Flash-LiteGoogle$5.50
  14. GPT-5 MiniOpenAI$6.50
  15. Qwen3.8 27BAlibaba Cloud (Qwen)$7.00

Monthly cost by model

#Model InputOutput Per monthPer year
1
GPT-5 nanoLegacy OpenAI · $0.1375 / 1M tokens
 $0.50$0.80 $1.30 $15.60
2
DeepSeek V4 Flash 0731 DeepSeek · $0.1488 / 1M tokens
 $1.19$0.48 $1.67 $19.99
3
Gemini 2.5 Flash-LiteLegacy Google · $0.175 / 1M tokens
 $1.00$0.80 $1.80 $21.60
4
GPT-4.1 nanoDeprecated OpenAI · $0.175 / 1M tokens
 $1.00$0.80 $1.80 $21.60
5
Claude Haiku 5.5 Anthropic · $0.20 / 1M tokens
 $1.00$1.00 $2.00 $24.00
6
GPT-6 Luna OpenAI · $0.20 / 1M tokens
 $1.00$1.00 $2.00 $24.00
7
GPT-6 Luna Pro OpenAI · $0.20 / 1M tokens
 $1.00$1.00 $2.00 $24.00
8
GPT-4o MiniDeprecated OpenAI · $0.2625 / 1M tokens
 $1.50$1.20 $2.70 $32.40
9
DeepSeek V4 Flash Vision ExpPreview DeepSeek · $0.3234 / 1M tokens
 $2.16$1.29 $3.45 $41.40
10
GPT-5.6 Luna OpenAI · $0.45 / 1M tokens
 $2.00$2.40 $4.40 $52.80
11
GPT-5.4 nanoDeprecated OpenAI · $0.4625 / 1M tokens
 $2.00$2.50 $4.50 $54.00
12
DeepSeek V4.1 Flash DeepSeek · $0.525 / 1M tokens
 $3.00$2.40 $5.40 $64.80
13
Gemini 3.1 Flash-LiteLegacy Google · $0.5625 / 1M tokens
 $2.50$3.00 $5.50 $66.00
14
GPT-5 MiniLegacy OpenAI · $0.6875 / 1M tokens
 $2.50$4.00 $6.50 $78.00
15
Qwen3.8 27B Alibaba Cloud (Qwen) · $0.775 / 1M tokens
 $2.00$5.00 $7.00 $84.00
16
GPT-4.1 MiniDeprecated OpenAI · $0.70 / 1M tokens
 $4.00$3.20 $7.20 $86.40
17
Gemini 3.5 Flash-Lite Google · $0.85 / 1M tokens
 $3.00$5.00 $8.00 $96.00
18
Mistral Large 4Preview Mistral AI · $0.75 / 1M tokens
 $5.00$3.00 $8.00 $96.00
19
Gemini 2.5 FlashLegacy Google · $0.85 / 1M tokens
 $3.00$5.00 $8.00 $96.00
20
GPT-3.5 TurboDeprecated OpenAI · $0.75 / 1M tokens
 $5.00$3.00 $8.00 $96.00
21
Gemini 3 FlashLegacy Google · $1.13 / 1M tokens
 $5.00$6.00 $11.00 $132.00
22
Grok Build 0.1 xAI · $1.25 / 1M tokens
 $10.00$4.00 $14.00 $168.00
23
Gemini 3.8 Flash Google · $1.50 / 1M tokens
 $7.50$7.50 $15.00 $180.00
24
Gemini 3.7 Flash Google · $1.50 / 1M tokens
 $7.50$7.50 $15.00 $180.00
25
Gemini 3.6 FlashLegacy Google · $1.50 / 1M tokens
 $7.50$7.50 $15.00 $180.00
26
GPT-5.4 MiniLegacy OpenAI · $1.69 / 1M tokens
 $7.50$9.00 $16.50 $198.00
27
Grok 4.3 xAI · $1.56 / 1M tokens
 $12.50$5.00 $17.50 $210.00
28
Grok 4.20 Reasoning xAI · $1.56 / 1M tokens
 $12.50$5.00 $17.50 $210.00
29
Grok 4.20 Non-Reasoning xAI · $1.56 / 1M tokens
 $12.50$5.00 $17.50 $210.00
30
Grok 4.20 Multi-Agent xAI · $1.56 / 1M tokens
 $12.50$5.00 $17.50 $210.00
31
o3-miniDeprecated OpenAI · $1.93 / 1M tokens
 $11.00$8.80 $19.80 $237.60
32
o4-miniDeprecated OpenAI · $1.93 / 1M tokens
 $11.00$8.80 $19.80 $237.60
33
GPT-6.1 Terra OpenAI · $2.00 / 1M tokens
 $10.00$10.00 $20.00 $240.00
34
GPT-6.1 Terra Pro OpenAI · $2.00 / 1M tokens
 $10.00$10.00 $20.00 $240.00
35
Claude Haiku 4.5Legacy Anthropic · $2.00 / 1M tokens
 $10.00$10.00 $20.00 $240.00
36
DeepSeek V4 Pro DeepSeek · $1.98 / 1M tokens
 $13.20$7.92 $21.12 $253.44
37
Grok 4.7 xAI · $3.00 / 1M tokens
 $20.00$12.00 $32.00 $384.00
38
Qwen3.8 2.4T A95B Alibaba Cloud (Qwen) · $3.00 / 1M tokens
 $20.00$12.00 $32.00 $384.00
39
Grok 4.6Legacy xAI · $3.00 / 1M tokens
 $20.00$12.00 $32.00 $384.00
40
Grok 4.5Legacy xAI · $3.00 / 1M tokens
 $20.00$12.00 $32.00 $384.00

Show all 87 models

Frequently asked questions

How is the monthly cost calculated?

Input tokens are multiplied by the input price, output tokens by the output price, both per million tokens. The cached share of input uses the cached-input price when the provider publishes one, and the batch option uses batch prices where they exist. Prices are the ones valid today.

How many tokens is a word?

In English, a token is roughly three quarters of a word, so a million tokens is about 750,000 words. French and especially Arabic text usually takes more tokens for the same content, and each provider's tokenizer differs.

What is cached input?

When the start of a prompt repeats across requests, such as a long system prompt or a document, providers can reuse it and bill it at a much lower rate. Agents and document Q&A often reach 50 to 90% cached input.

Are free tiers and discounts included?

No. The calculator uses list prices in US dollars, before taxes, free allowances, committed-use discounts or regional surcharges.